TDK-Lambda PFE300SA Series Instruction Manual - Tdk-Lambda
15
TDK-Lambda
PFE300SA
・
500SA Series
INSTRUCTION MANUAL
7-3. Notes on Designing PWB for Power Module Mounting
In order to satisfy withstand voltage specification, it is recommended to keep following distances for each
pattern wiring and mounting components distance of primary circuit (Input), secondary circuit (Output) and
FG (Baseplate).
Between primary circuit and FG ・・・・・ 5.0mm or more
Between secondary circuit and FG
・・・・
2.0mm or more
To ensure conformance to various safety standards, creepage distance and clearance between the primary and
the secondary of the PWB for power module mounting shall be considered. From the power module cover
outline and terminals, keep creepage distance and clearance between the primary and the secondary.
In order to acquire safety standards for this power module, creepage distance and clearance between the primary
and the secondary is designed to be 7.5 mm. The pattern wiring prohibited area of the PWB is shown in Fig. 7-4,
and power module cover outline is shown in Fig. 7-5.
Creepage distance and clearance between the primary and the secondary of the PWB for power module
mounting varies depending on power module mounting condition, contact our customer support for details.
・・・
Pattern wiring prohibited area of the secondary circuit
・・・
Pattern wiring prohibited area of the primary circuit
・・・
Pattern wiring prohibited area of the primary and the secondary circuit
Fig.7-4 Pattern wiring prohibited area of PWB for power module mounting
(When the distance on the primary and the secondary is 7.5 mm)
Fig.7-5 Dimensions of the power supply cover